How can the TV series Betta Fish have two endings ~

Yes, the second film started after Dan went to prison.

The ending of the first film is that Yuhao died, Swallow became a kindergarten teacher, she and Yuhao had a son, Danzi became a lawyer, and Red Bean died, and Archie went to the countryside to accompany Uncle Hui.

In the second part, the ending is that Yu Hao and Swallow are finally together, and the police undercover Lie played by Pig dies to save Yu Hao.